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"""
Test the AddressSanitizer runtime support for report breakpoint and data extraction.
"""
import json
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class AsanTestReportDataCase(TestBase):
@skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default
@expectedFailureNetBSD
@skipUnlessAddressSanitizer
@skipIf(archs=["i386"], bugnumber="llvm.org/PR36710")
def test(self):
self.build()
self.asan_tests()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
self.line_malloc = line_number("main.c", "// malloc line")
self.line_malloc2 = line_number("main.c", "// malloc2 line")
self.line_free = line_number("main.c", "// free line")
self.line_breakpoint = line_number("main.c", "// break line")
self.line_crash = line_number("main.c", "// BOOM line")
self.col_crash = 16
def asan_tests(self):
target = self.createTestTarget()
self.registerSanitizerLibrariesWithTarget(target)
self.runCmd("run")
stop_reason = (
self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
)
if stop_reason == lldb.eStopReasonExec:
# On OS X 10.10 and older, we need to re-exec to enable
# interceptors.
self.runCmd("continue")
self.expect(
"thread list",
"Process should be stopped due to ASan report",
substrs=["stopped", "stop reason = Use of deallocated memory"],
)
self.assertEqual(
self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(),
lldb.eStopReasonInstrumentation,
)
self.expect(
"bt",
"The backtrace should show the crashing line",
substrs=["main.c:%d:%d" % (self.line_crash, self.col_crash)],
)
self.expect(
"thread info -s",
"The extended stop info should contain the ASan provided fields",
substrs=[
"access_size",
"access_type",
"address",
"description",
"heap-use-after-free",
"pc",
],
)
output_lines = self.res.GetOutput().split("\n")
json_line = "\n".join(output_lines[2:])
data = json.loads(json_line)
self.assertEqual(data["description"], "heap-use-after-free")
self.assertEqual(data["instrumentation_class"], "AddressSanitizer")
self.assertEqual(data["stop_type"], "fatal_error")
# now let's try the SB API
process = self.dbg.GetSelectedTarget().process
thread = process.GetSelectedThread()
s = lldb.SBStream()
self.assertTrue(thread.GetStopReasonExtendedInfoAsJSON(s))
s = s.GetData()
data2 = json.loads(s)
self.assertEqual(data, data2)
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